scenario Mobile
Phone

Andy has an old mobile phone as shown below. It has no features beyond
dialling a number.

original phone

new phone with menu buttons

Scenario A (original phone)

Andy decides to ring a friend for whom he already has the number in his
(paper) address book.

A.1 Andy looks up the phone number in his address book
A.2 He dials the number into the phone
A.3 The digits appear on the phone display
A.3 He presses 'YES'
A.4 The phone display says 'calling'
A.5 A few seconds later it says 'connected'
A.6 Andy talks to his friend
A.7 When they finish talking Andy presses 'NO' to finish the call

Scenario B (original phone)

Andy decides to ring a friend for whom he doesn't know the number

B.1 Andy dials 118 ... (directory enquiries) into the phone
B.2 The digits '118 ...' appear on the phone display
B.3 He presses 'YES'
B.4 The phone display says 'calling'
B.5 A few seconds later it says 'connected'
B.6 Andy talks to the operator and asks for the number of his friend
B.7 As the operator reads the number to him he writes it down on a scrap
of paper
B.8 He starts to dial the number as in A.2 onwards

When Andy gets his new phone he can still use his paper address book
and directory enquiries as in scenarios A and B, but in addition the phone
has a series of menus reachable using the arrow keys. These include an
electronic 'phone book' of shortcut numbers on the phone. If Andy has
stored his friend's number on his phone he can ring his friend as follows: